I just upgraded an older PDVD 10 to 11 Ultra last night. Cyberlink is running a Black Friday special and I was able to get the upgrade for $39 (and it came with a free code to download the Cyberlink Mobile app & remote app for my Android phone and tablet).
For whatever reason, the TMT5 I bought last year no longer works in 3D. This stupid software has been buggy from day one. I bought it on Black Friday last year as well for $60. When it worked, the picture quality was much better than PDVD, but like I said, TMT5 was really buggy. Some times the movie would play really slow and glitchy (I have a i7 2600k, 16GB ram, GTX460's running in SLI and SSD drive, so my system is more than sufficient). I've tried uninstalling and re-installing and nothing seems to fix the issue with the 3D not working, but now that I switched over to PDVD11, TMT5 has been permanently removed from my computer.
The 2D to 3D conversion on both of these software titles are "ok" at best. One of the weird things about these programs when they do 2D to 3D is that... say you have a 16:9 movie and you push the 2D/3D button to make this movie 3D... well, when this happens, on the left and right side, you'll see a slight variation or offset of the picture. A movie should sit flush with the edge of the screen, but now that it's being converted to 3D, there's this over-lapping of the Side-By-Side images and it leaves gaps on the right and left sides of the screen. It's a little annoying. Plus, you should really have the BEST quality video if you want to do 2D to 3D conversion. DVD quality or Youtube quality is not sufficient. Sure, it works, but it looks like crap. The 2D to 3D isn't that great for every movie, TV show, video, etc. either. Some material looks better than others. As this is "fake 3D", it doesn't look as good as professional 3D material, either, but for some stuff, it's good enough, especially if you really like 3D. I mean, you won't see objects popping out at you (this is rare even with 3D Blu-ray movies) but you will have pseudo depth with most material being viewed.
One of my favorite 2D to 3D movies to watch is the old Tron movie, however, that movie has several scenes where there are lines (either on their costume or the grid or scenery) and the 2D to 3D conversion doesn't know how to interpret these lines correctly so they end up looking distorted and wavy, but IMHO, it's pretty cool to see the original Tron movie in pseudo 3D. The old 1984 movie DUNE looks pretty decent as well.